There is a handy script to get the Bash tarball from opensource.apple.com, apply patches 52, 53, and 54 from ftp.gnu.org, build it, and then prompt to replace /

There is a handy script to get the Bash tarball from opensource.apple.com, apply patches 52, 53, and 54 from ftp.gnu.org, build it, and then prompt to replace /bin/bash and /bin/sh. Xcode required. https://github.com/tjluoma/bash-fix https://github.com/tjluoma/bash-fix (yes, you have zsh on OSX by default)